title: Combining phenotypic data from ordinal rating scales in multiple plant experiments.
authors.forename: Ivan
authors.initials: I
authors.lastname: Simko
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Piepho
mesh_terms: D010641:Phenotype; D010944:Plants / Q000145:classification*; D013223:Statistics as Topic / Q000379:methods*